docs: def import_all_policies():
      """ Import all policies that were registered by vint.linting.policy_registry.
  
      Dynamic policy importing is comprised of the 3 steps
        1. Try to import all policy modules (then we can't know what policies exist)
        2. In policy module, register itself by using vint.linting.policy_registry
        3. After all policies registered by itself, we can get policy classes
      """
      pkg_name = _get_policy_package_name_for_test()
      pkg_path_list = pkg_name.split('.')
  
      pkg_path = str(Path(_get_vint_root(), *pkg_path_list).resolve())
  
      for _, module_name, is_pkg in pkgutil.iter_modules([pkg_path]):
          if not is_pkg:
              module_fqn = pkg_name + '.' + module_name
              logging.debug('Loading the policy module: `{fqn}`'.format(fqn=module_fqn))
              importlib.import_module(module_fqn)